No problem, we've got 18215489 and 91916192 to multiply
18215489 × 91916192 = 91916192 × (18215489)
+ 91916192 × 9 producing 827245728
+ 91916192 × 80 which equals 7353295360
+ 91916192 × 400 what gives us 36766476800
+ 91916192 × 5000 what gives us 459580960000
+ 91916192 × 10000 resulting in 919161920000
+ 91916192 × 200000 what gives us 18383238400000
+ 91916192 × 8000000 what gives us 735329536000000
+ 91916192 × 10000000 what gives us 919161920000000

= 1674298384297888
